Astronauts on the International Space Station this week powered up a remarkable piece of technology called "Robonaut 2," a humanoid robot with incredible dexterity, built by NASA and General Motors, and the first of its kind to enter space.

While "Robonaut 2" has been in storage for the last few months following its delivery to the space station, astronauts took it out yesterday and powered it up, testing its sensors and wiring ahead of a more complicated movement test next month.

"Those electrons feel GOOD!" the official "Robonaut" Twitter account declared, once the bot had been successfully powered up. "One small step for man, one giant leap for tinman kind."

"Robonaut 2" is designed to be dexterous enough to perform complicated tasks, and human-like to prevent the need for its own set of special tools. While it does not have legs, NASA says those will be attached in 2013.

This video is from NASA.